/**
*
* Run a self-test on the driver/device. Note this may be a destructive test if
* resets of the device are performed.
*
* If the hardware system is not built correctly, this function may never
* return to the caller.
*
* @param baseaddr_p is the base address of the PWMinstance to be worked on.
*
* @return
*
* - XST_SUCCESS if all self-test code passed
* - XST_FAILURE if any self-test code failed
*
* @note Caching must be turned off for this function to work.
* @note Self test may fail if data memory and device are not on the same bus.
*
*/
XStatus PWM_Reg_SelfTest(void * baseaddr_p)
{
u32 baseaddr;
int write_loop_index;
int read_loop_index;
int Index;
baseaddr = (u32) baseaddr_p;
xil_printf("******************************\n\r");
xil_printf("* User Peripheral Self Test\n\r");
xil_printf("******************************\n\n\r");
/*
* Write to user logic slave module register(s) and read back
*/
xil_printf("User logic slave module test...\n\r");
for (write_loop_index = 0 ; write_loop_index < 4; write_loop_index++)
PWM_mWriteReg (baseaddr, write_loop_index*4, (write_loop_index+1)*READ_WRITE_MUL_FACTOR);
for (read_loop_index = 0 ; read_loop_index < 4; read_loop_index++)
if ( PWM_mReadReg (baseaddr, read_loop_index*4) != (read_loop_index+1)*READ_WRITE_MUL_FACTOR){
xil_printf ("Error reading register value at address %x\n", (int)baseaddr + read_loop_index*4);
return XST_FAILURE;
}
xil_printf(" - slave register write/read passed\n\n\r");
return XST_SUCCESS;
}
/*
* Read from Register of PWM Module
* In: Register
* Returns content of register
*/
u32 readPwmReg(u32 reg) {
return PWM_mReadReg(PWMADDRESS, reg);
}
